Lubricating spindle-bearings.



No. 827,731. PATENTED AUG. '7, 1906.

M. AN HAAGK & A. KNOBLAUGH. LUBRIGATING SPINDLE BEARINGS.

APPLIOATION FILED SEPT.8,1905.

INVENTOHS WAX fl/V flMc/f 4.555,? 7' A A/03Mucw UNITED STATES PATIENT (OFFICE.

MAX AN HAACK AND ALBERT KNOBLAUGH, 0F ZYRARDOW, RUDA GUZOVVSKA STATION, NEAR WARSAW, RUSSIA.

Specification of Letters Patent.

Patented Aug. 7, 1906.

Application filed September 8,1905. Serial No. 277,620.

1'0 aZZ whom it may concern.-

Be it known that we, MAX AN HAACK and ALBERT KNOBLAUGH, subjects of the German Emperor, residing at Zyrardow, Ruda Guzowska Station, near Warsaw, in theEm ire of Russia, have invented new and useful mprovements in Ap aratus for Lubricating Spindle-Bearings, ofwhich the following is a specification.

Our invention relates to apparatus designed for lubricating the bearings of quickrunning spindles by the circulation of 011 and in which the oil during the rotation of the spindle is conveyed from a reservoir arranged below the bearin back to the cup above the same through a Iielical groove ascending in the direction of rotation. I

In apparatus of the kind heretofore employed either the oil-reservoir or the helical groove is stationary. In both cases the passage of the oil through the helical groove ta es place at such a speed that the finelydivided heavy impurities contained in the oil cannot separate therefrom in the reservoir, and are therefore continually carried through the bearing. I

According to our said invention this drawback is obviated by providing the helical groove and also the oil-reservoir u on the spindle, so as to rotate therewith. T e oil in t e reservoir b reason of its inertia revolves more slowly t an the helical groove in the spindle. Thus the conveyance is caused only by the difference between the s eeds of revolution of the oil and of the helica groove, the speed being consequently much less than heretofore, yet quite sufficient for renewing the oil in the bearing. The oil remains for some time in the reservoir, so as to allow the impurities to separate and to be forced by centrifugal action against the outer wall or sides of such reservolr out of the reach of the helical groove, so that they cannot be conveyed to the bearing, to which only the pure oil in contact with the spindle is conveyed through the helical groove.

In the accompanying drawings, Figure 1 is a vertical section, and Fi 2 a transverse section on the line A B of Flg. 1.

Upon the spindle a is arranged in the wellknown manner below the bearing 12, either separately or integrally with the pulley c,

the oil-reservoir d, this reservoir beingsecured to the spindle. The oil flows from the cup e at the top of the bearing 1) through'a channel forming a groove If in the bearing down into the'reservoir. n the rotation of the spindle the oil is lifted through the helical groove 9', which ascends in the direction of I rotation of the spindle a and is formed in the are driven by centrifugal action against the outer wall or sides of the reservoir, where they are no longer subjected to the conveying action ofthe helical groove.

What we claim as our invention, and desire to secure by Letters Patent, is

In ap aratus of the character described, the com ination of a spindle having a helical conveying-groove ascending in the direction of rotation of said spindle, a bearing provided with an oil-return passage, an oil-cup formed at the top of this bearing, and an oil-reservoir secured to said spindle below such bearing, substantially as and for the purpose herein set forth.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

M. AN HAAOK. ALBERT KNOBLAUOH.

Witnesses CYRYL TRESTNIOKI, ALEKSANDER TREDEBOKE. 

